Hello,
I'm building an API based on a RetrieveUpdateAPIView
<https://www.django-rest-framework.org/api-guide/generic-views/#retrieveupdateapiview>
with
a Writable nested serializers
<https://www.django-rest-framework.org/api-guide/relations/#writable-nested-serializers>.
The issue I have is that when I make a PUT request, the response data
contains all the data of the serializer... And the amount of those data is
pretty big.
*How can I modify my code to avoid this behavior? I imagine that this
should be at the level of the view?*
Thanks for your support.
For the record,
Here is the serializer code:
# DatetimeValue serializer
class DatetimeValueSerializer(serializers.ModelSerializer):
class Meta:
model = DatetimeValue
fields = ['date_time', 'value']
# Serializer that includes time series header and date time values
class TimeSeriesValueSerializer(serializers.ModelSerializer):
values = DatetimeValueSerializer(many=True)
class Meta:
model = TimeSeries
fields = ['id', 'name', 'values']
def update(self, instance, validated_data):
ts_name = validated_data.pop('name')
try:
time_series = TimeSeries.objects.get(name=ts_name)
except ObjectDoesNotExist:
raise ValidationError(_(f"Time series doesn't exist"))
values_data = validated_data.pop('values')
for datetime_value in values_data:
try:
DatetimeValue.objects.create(time_series=time_series,
**datetime_value)
except IntegrityError:
raise ValidationError(_(f"ERROR in 'date_time' and/or 'value'
provided. "
f"'date_time' has to be a correct date
time format and 'value' a float. "
f"A 'date_time' has to be unique for a
given time series"))
return time_series
And the view code:
# View to get time series datetime values
class TimeSeriesValueDetail(generics.RetrieveUpdateAPIView):
queryset = TimeSeries.objects.all()
serializer_class = TimeSeriesValueSerializer
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